.mask{
    background-color: #43455052;
    position: fixed;
    left: 0;
    top: 0;
    right: 0;
    bottom: 0;
    z-index: 1;
}

$modalWidth: 700px;
$modalHeight: 500px;

.modal_content{
    position: absolute;
    width: $modalWidth;
    height: $modalHeight;
    top: 50%;
    left: 50%;
    background: white;
    margin-left: -.5*$modalWidth;
    margin-top: -.5*$modalHeight;
    display: flex;
    flex-direction: column;
}

.close{
    position: absolute;
    right: 10px;
    top: 10px;
    background: transparent;
    border: none;
    cursor: pointer;
    font-size: 16px;
}

.title{
    text-align: center;
    padding: 20px;
}

.body{
    text-align: left;
    padding: 15px;
    flex-grow: 1;
}

.textarea{
    width: 100%;
    height: 100%;
}